Combined table lock and opener.



G. T. BUDDLE.

COMBINED TABLE LOCK AND OPENER.

Inventor Patented Oct. 12, 1915.

Witnesses Attorneys WASHINGTON D c riacaco.

IIN

GEORGE 'r. Bunntnon CHICAGQVILLINOIS.

I COMBINED'IABLE LOCK AND ornnnn.

Specification of Letters Patent. Patgntefl O t 12,

Application filed October19, 1914. Serial No. 867,428.

provide a lock which, when operated in one direction, will successively engage a keeper and draw together the sections ofthe eXtension table, holding them in such position and which, when actuated in the opposite direction, will operate to push the'sectlons of the table apart andtothen release one of thesections A further object is to provide a combined lock and opener of this type which is com-j pact, canbe operated readily, and which is formed ofthe minimum number of parts;

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts andin the details ofconstruction hereinafter described and claimed, it being understood that changes in/the precise'embodiment of the invention herein disclosed, can bemadewithin the scope of what'is claimed, without departing from the spirit of the invention.

In the accompanying drawings the prefer-red forms ofthe inventionhave been shown. I H

In said'drawings Figurel is a bottom plan view of a portion of an extension table having the present improvements combined therewith, the sections of the table being shown drawn together Fig. 2 is a. View similar to Fig. 1 but showing the relative positions of theparts after one of the sections has been pushed from the othersection and released fromthe lock. Fig.3;isa view similar to Fig. 1 but showing. amodified' construction. Fig. 1 is: a view showingthe parts illustrated in Fig. 3 shifted to unlocked position. Fig. 5 is a bottom plan view of another modified form oflock and opener. Fig.6 is a bottom plan view of an other modified structure. Fig. 7 is a bottom plan view of a further modification.

H Referring to the figures by characters: of

I lever 11 is extended diagonally for a reference A and B I designate opposed sec tions of. an extension table and it is designed to attach one part of the present invention to the bottom of one of these sections and another part to the bottom of theothersection so that, when theparts areproperly actuated, the sections will be either drawn toward each other and locked or pushed apart, as desired. i

One form of keeper to be used has been illustrated in Figs. 1, 2 and 5 and consists of a base or attaching plate 1 provided, at one end, with a lug 2 disposed at right angles to the base, this lug being cut away at one end so that'the base plate 1 projects laterally beyond the lug as shown at 3. The plate 1 is adapted to be fastened to the table by means of screws or like fastening means as shown in Figs. 1 and 2 or, if preferred, can be adjustably attached to the section A.

\Vhereit is designed to attach the keeper adjustably, the base plate 4C of the keeper is formed with spaced longitudinal slots 5 and pivotally connected to the plate 1 at a point between the slots is a disk 6 having eccentrically disposed slots 7 through which A extend attaching screws 8, these screws projecting through the slots 5 and engaging the section A. By loosening the screws, the disk 6 can be rotated so as to cause said disk and the keeper to shift toward or fromthe 1 section B after which, by tightening the screws 8, the parts will be held securely in the positions'to which they have been adjusted. I

One form of latch adapted to be used in connection with the keepers, has been illustrated in Figs. 1 and 2 andincludes a latch strip 9 pivotally connected at one end,as shown at 10, to a lever 11 \vhich, in turn, is

pivotally mountedon an attaching plate 12 its end and by reducing the'width of the terminal portion of the strip 9. Av longitudinal slot 15 is formed in the strip 9. ad

- j acent the hookl8 and projecting thereinto is a guide stud 16 projecting from anattaching plate 17 which is secured to the sec- 1 tion B. That end' of slot 15 nearest the short distance as shown at 18. a

The parts are so proportioned thatwhen the lever 11 is swung in the direction indicated by the arrow in Fig. 1, it will slide the strip 9 toward the section A, thus removing the hook 13 from engagement with lug 2 and causing the wall of notch 14 to come against said lug 2 and push against it, thus thrusting the section A away from sectionB. After the twosections have been moved apart a short distance, the diagonally disposed slot 18 will receive the guide stud 16 and'cause the strip 9 to swing later-ally to-the-iposition shown "in Fig 2, thusremoving hook 1'3 from engagement with the lug 2 and allow-mg section A to be pulled awayirom section B. V IV V When it is desired to place the sectionsA and togetherand lock them in such'positiomthe section Ais shoved toward section b B until the lug 2 comes against the shoulder 14' -a"fter;which handle 11 is swung in a direction opposite-to that indicated by the ar- 7 Instead of depending upon the shoulder -14 to engage the lug 2 and push the sections apart, a supplemental lug 20 can be formed upon the-base plate of the keeper as shown in :Fig; 7 and, when the strip 21,- which cor- I responds with strip, 9, is shifted longitudinally, the hook 2 2 will press against lug 20 and push the sections A and Bapa-rt. I Thus in this modified torm of device the strain o lncluslve;

- I the same utilizes a latch strip 24 similar to upon the, keeper is distributed betweentwo lugs, the pulling strain being transmitted through the 1ug'23 which corresponds with lug 2, while the pushing strain is transmitted through, l-ug20. Instead of forming the lugs with the keeper engaging portion integral with the latch strip, said keeper engaging portion can be made in a separate piece asshown, for example, inFigs; '3 to 6 By referring to Fig. 3 it will be seen that V the strip 9 with the exception that it is not provided with .a hook. vInstead a keeper engaging member 25 is pivotally mounted on the strip as shown at 26 and has one end projecting beyond the end of strip 24: and provided withoahook 27. This member25 has a longitudinalslot 28 merging into a diagonally disposed slot 29, the longitudinal slot registering with i the corresponding slot 7 inthe strip 24 while the diagonalslot 29 diverges from the corresponding diagonal slotinthe strip A stud 30-extends from slotsin strip 24 and member 25.

the attachingplate 31 and into both of the Thus 1t will be seen that when the lever 32 is actuated forthe' purpose of releasing the section V A, the hook 27 will move out of engagement with lug 33 while the end of the strip 24 will then come against the lug 33 and push the section Aaway from the section B. This operation occurs While the stud 30 is located within the longitudinal slots. ,As' soonas said stud enters the diagonal slots within the strip 24 and member 25, the sald strip 2-1 is swung quickly'in one direction, while the member 25 is swung at the same time inthe opposite direction so that the parts assume the position shown in Fig. 4. Consequently, while the member 24 continues-to push against the lug 33, the hook27 is swung quickly out of engagement with the lug. In assembling the parts of the table the fore going operation'is reversed.

Instead of pivotally mounting the member 25 at that end thereof remote i'romits hook 27, the pivot can be located between the hook and the slots, as shown at 3% in Fig. 5. In

that before described with reference to Figs. 3 and 4: with the eXcep'tionthat-the relative movement of the hook and the strip 35 is not so great.

Instead of mounting the strip 35 extended from the-strip 3:? and beyond the hook 38 on the keeper engaging "member 39v and the latch can thenbe used in connection with a keeper such as illustrated in'Figs. 6 and 7 With this construction, the strip 37 isrprovided with a slot which is straight sons to press against the'lug 33, a finger 36"can be this structure the operation is'the same as so from end to end as shown at 40, while the keeper engaging member 39 has a longitudinal slot Al mergin'g into a diagonal slot 42. Thus when the stud 43 enters the far ends of the slots, the strip '37 pushes forwardly against the lug 20 while the hook 38 is swung laterally out of engagement with lug 23. The operation of the device shown in Fig. 6 corresponds with that of the device shown in F ilg. 7 in thatthe lug 20 receives ithe thrusting strain receives the pulling strain. 7

Various changes other than those dewhile the lug 23' scribed and illustrated may be made as will be obvious.

Inorder that the strips 9, 24 or 37 maybe Y 'made of light thi n material, each of said stripszis preferably oflset at a point between itsr-ends so that the two -end portions will line in parallel planes, and at the same time allow for-the idifi erence in distances between theL-sectiOn B and the two endportions of thezstrips. The bend resulting in this offset haszlibeen indicated in each of the figures at What 'is 'claimed is:- o l. The combination with a-keeper, of a guide, a member slidably engaging the guide, means for shifting the slidable member in one direction to push against the keeper, a keeper engaging latch pivotally connected to the slidable member, and means on the latch and movable against the guide during the pushing movement of the slidable member, to shift the latch out of engagement with the keeper, and, during the opposite movement of the slidable member, to shift the latch into engagement With the keeper.

2. The combination with a keeper, of a latch strip having a longitudinal slot mer ing at one end into an obliquely disposed slot, a guide member extending into said slot,

means for shifting the latch strip in one direction to thrust against the keeper while the guide member is within the longitudinal slot, and to disengage the latch strip from the keeper while the guide member is within the obliquely disposed slot, a hooked member pivotally connected to the latch strip, and adapted to engage the keeper to pull thereon during the movement of the latch strip in the opposite direction, said hooked member having a longitudinal slot merging at one end in an obliquely disposed slot, the guide member extending into the slot.

3. The combination with a keeper having a projecting portion, of a latch strip having a longitudinal slot merging at one end into an obliquely disposed slot, a fixed guide stud extending into the slot, means for shifting the latch strip in one direction to thrust a projecting portion, of a guide member, a

latch strip having a longitudinal slot into which the guide member extends, means for sliding said latch strip longitudinally to thrust against the keeper, and a keeper engaging hook movable with the latch member and having a longitudinal slot merging at one end into an obliquely disposed slot, said guide member extending into the slot and cooperating with thewalls thereof to shift the hook laterally out of engagement With the keeper during the pushing operationby the latch strip.

In testimony that I claim the foregoing as my own, I have hereto affixed my signature in the presence of two Witnesses.

GEORGE T. BUDDLE.

. Copies of this patent may be obtained for five cents each, by addressing the Commissioner ofPatents,

Washington, D. G. 

